<template>
	<section>
		<!--工具条-->
		<el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
			<el-form :inline="true" :model="filters">
				<el-form-item>
					<el-input v-model="keyword" placeholder="请输入关键字"></el-input>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" v-on:click="keywordQuery" v-perm="'department:list'">查询 </el-button>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" v-perm="'department:save'" @click="handleAdd">新增</el-button>
				</el-form-item>
			</el-form>
		</el-col>

		<!--列表-->
 <el-table :data="departments" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">
      <el-table-column type="selection" width="55">
      </el-table-column>
      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="id" label="部门ID" width="120" sortable>
      </el-table-column>
      <el-table-column prop="sn" label="编号" width="120" sortable>
      </el-table-column>
      <el-table-column prop="name" label="名称" width="120" sortable>
      </el-table-column>
      <el-table-column prop="dirPath" label="路径" width="100" sortable>
      </el-table-column>
      <el-table-column prop="state" label="状态" width="100" sortable>
        <template scope="scope">
          <span v-if="scope.row.state==0" style="color: red">禁用</span>
          <span v-else style="color: green">启用</span>
        </template>
      </el-table-column>
      <el-table-column prop="manager.username" label="部门经理" width="120" sortable>
      </el-table-column>
      <el-table-column prop="parent.name" label="上级部门" min-width="180" sortable>
      </el-table-column>
      <el-table-column label="操作" width="150">
        <template scope="scope">
          <el-button size="small" v-perm="'department:update'" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
          <el-button type="danger" size="small" v-perm="'department:delete'" @click="handleDel(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

		<!--工具条 批量删除 + 分页栏-->
		<el-col :span="24" class="toolbar">
			<el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
			<el-pagination layout="prev, pager, next" @current-change="handleCurrentChange"
                     :page-size="pageSize" :total="totals" :current-page="currentPage" style="float:right;">
			</el-pagination>
		</el-col>

		<!--编辑或者新增界面-->
		<el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
			<el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">
				<el-form-item label="编号" prop="sn">
					<el-input v-model="saveForm.sn" auto-complete="off"></el-input>
				</el-form-item>
        <el-form-item label="姓名" prop="name">
          <el-input v-model="saveForm.name" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="状态">
          <el-radio-group v-model="saveForm.state">
            <el-radio class="radio" :label="1">启用</el-radio>
            <el-radio class="radio" :label="0">禁用</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="部门经理" prop="manager_id">
          <el-select v-model="saveForm.manager_id" placeholder="请选择">
            <el-option v-for="item in managers"
                       :label="item.username"
                       :value="item.id">
              <span style="float: left">{{ item.username }}</span>
              <span style="float: right; color: #8492a6; font-size: 13px">{{ item.phone }}</span>
            </el-option>
          </el-select>
        </el-form-item>

          <el-form-item label="上级部门">

            <!-- el-cascader - 级联框
           v-model="saveForm.parent_id" - 双向绑定
            options:属性指定选项数组即可渲染出一个级联选择器。
             label: 'name', - 回显哪一个属性值
               value: 'id' - 传值哪一个属性值
           回显机制【修改】：
             1.定位：v-model="saveForm.parent_id" 与 deptTree中的每一个对象的id 定位
             2.显示哪一个属性值：label: 'name',  回显对象的name属性值
           传值机制：
             ？？
         -->
        <el-cascader v-model="saveForm.parent_id"
                     :options="deptTree"
                     :props="{
                    checkStrictly: true,//是否严格的遵守父子节点不互相关联
                    label: 'name', // 级联框显示那个属性的值
                    value: 'id'    // 回显时需要,回传值的时候也需要
                    }" clearable>
        </el-cascader>
          </el-form-item>
			</el-form>
			<div slot="footer" class="dialog-footer">
				<el-button @click.native="saveFormVisible = false">取消</el-button>
				<el-button type="primary" @click.native="saveSubmit" :loading="saveLoading">提交</el-button>
			</div>
		</el-dialog>
	</section>
</template>

<script>
	import util from '../../common/js/util'
	//import NProgress from 'nprogress'
	import { getDepartmentListPage, removeDepartment, batchRemoveDepartment, saveDepartment, addDepartment } from '../../api/api';

	export default {
		data() {
			return {
        //1. 分页查询相关的参数
        departments: [],    //列表数据
        pageSize:5,         //每页显示的条数
        currentPage:1,      //当前页
        totals: 0,          //总数量
        listLoading: false, //加载框
        //2.高级查询相关的参数
        keyword:'',
        //3.批量删除的参数
				sels: [],//列表选中列
        //4.添加或修改的相关数据
        title:'',
        //5.添加或修改相关的数据
        saveFormVisible: false,//新增界面是否显示 -- 默认关闭
        saveLoading: false, //保存的加载框 -- 默认关闭
        saveFormRules: {  //表单项验证
          sn: [
            { required: true, message: '请输入编号', trigger: 'blur' }
          ],
          name: [
            { required: true, message: '请输入名称', trigger: 'blur' }
          ],
        },

        //添加和修改中对话框的数据
				saveForm: {
          id: null,
          sn: '',
          name: '',
          state: 1,
          manager_id: null,
          parent_id: null
				},
        //显示所有的部门经理
        managers: [],
        //模型数据data定义部门树
        //显示部门树
        deptTree: [],
			}
		},
		methods: {
      //1.获取部门列表
      getDepartments() {
        let para = {
          currentPage: this.currentPage,//当前页
          pageSize:this.pageSize,     //每一页显示的条数
          keyword:this.keyword
        };
        this.listLoading = true;  //显示加载框/忙等框
        this.$http.post("/department",para).then(res=>{
          this.departments=res.data.data;//赋值分页数据- 显示当前页的分页数据
          this.totals=res.data.totals;//给tatals赋值- 计算分页栏
          //隐藏加载框
          this.listLoading = false;
        }).catch(res=>{
          this.$message.error("系统繁忙,请稍后再试...")
        })
      },
      //2.点击实现分页
			handleCurrentChange(val) {
				this.currentPage = val;
				this.getDepartments();
			},
      //3.高级查询- 关键字查询
      keywordQuery(){
        this.currentPage=1;//高级查询  页数需要设置到第一页,如果页数在其他页数 当查询条数没有那么多, 查询出来的数据就是空的
        this.getDepartments();
      },
      //4.删除业务逻辑
      handleDel: function (index, row) {
        this.$confirm('确认删除该记录吗?', '提示', {
          type: 'warning'
        }).then(() => {
          this.listLoading = true //显示加载框
          this.$http.delete("/department/"+row.id).then(res=>{
            this.listLoading = false;//关闭加载框
            if(res.data.success){
              this.$message.success("删除成功") //提示删除成功

              //删除成功之后对当前页的处理:特殊情况:删除最后一页的最后一条数据
              var totalPage=Math.ceil(this.totals/this.pageSize);//总页数=最后一页
              //如果是当前页是最后一页             //并且是最后一页的最后一条数据            //并不是第一页
              if(this.currentPage==totalPage && (this.totals-1)%this.pageSize==0 && this.currentPage!=1){
                this.currentPage--;
              }

              this.getDepartments();//删除后 重新查询数据
            }else {
              this.$message.error("系统繁忙,请稍后重试!!![500]")
            }
          }).catch(res=>{
            this.$message.error("系统繁忙,请稍后重试!!![400,404]")
          })
        }).catch(() => {
        });
      },

      //5. 选项改变时 会触发此逻辑
      selsChange: function (sels) {
        this.sels = sels;
      },
      //6. 批量删除
      batchRemove: function () {
        //获取数组中每一个对象的id 并形成新的数组
        var ids = this.sels.map(item => item.id);
        this.$confirm('确认删除选中记录吗？', '提示', {
          type: 'warning'
        }).then(() => {
          this.listLoading = true; //显示加载框
          this.$http.patch("/department",ids).then(res=>{
            this.listLoading = false;//隐藏加载框
            if(res.data.success){
              this.currentPage=1;
              this.getDepartments();//删除后 重新查询数据
            }else {//操作失败
              this.$message.error("系统繁忙,请稍后重试!!![500]")
            }
          }).catch(res=>{
            this.$message.error("系统繁忙,请稍后重试!!![400,404]")
          })
        }).catch(() => {
        });
      },

      //7.点击修改按钮弹出对话框
      handleEdit: function (index, row) {
        //弹出对话框
        this.title="编辑";
				this.saveFormVisible = true;
        //回显数据:创建一个新的空对象{}，然后将row中的数据拷贝一份给{}
				this.saveForm = Object.assign({}, row);
        this.getManagers();// 获取所有的部门经理
        this.getDeptTree();//获取部门树
			},
			//8.点击新增按钮 显示新增界面
			handleAdd: function () {
        this.title="添加";
				this.saveFormVisible = true;
				this.saveForm = {
          id: null,
          sn: '',
          name: '',
          state: 1,
          manager_id: null,
          parent_id: null
				};
        this.getManagers();// 获取所有的部门经理
        this.getDeptTree();//获取所有的部门树
			},
			//9.新增或者编辑
			saveSubmit: function () {
				this.$refs.saveForm.validate((valid) => {
					if (valid) {
						this.$confirm('确认提交吗？', '提示', {}).then(() => {
							this.saveLoading = true;
							let para = Object.assign({}, this.saveForm);
              //选择多级部门的判断
              var isArr = para.parent_id;
              if(Array.isArray(isArr)){
                if(isArr.length==0){
                  para.parent_id==null;
                }else {
                  para.parent_id=isArr[isArr.length-1]
                }
              }
            this.$http.put("/department",para).then(res=>{

              if(res.data.success){
                this.getDepartments();

              }else {
                this.$message.error("系统繁忙,请稍后重试!!![500]")
              }
              this.saveLoading=false; //关闭加载框
              this.saveFormVisible=false; //关闭对话框
            }).catch(res=>{
              this.$message.error("系统繁忙,请稍后重试!!![400,404]")
            })
						});
					}
				});
			},
      //10.获取部门经理 - 所有的员工
      getManagers(){
        this.$http.get("/employee").then(res => {
          this.managers = res.data;
        })
      },
      //11.获取部门树
      getDeptTree(){
        this.$http.get("/department/deptTree").then(res=>{
          this.deptTree = res.data;
        })
      }
		},
		mounted() {
			this.getDepartments();
		}
	}
</script>

<style scoped>

</style>